TOAST UI Editor provides Markdown mode and WYSIWYG mode. The TOAST UI Editor offers Markdown mode and WYSIWYG mode, those can be switched at any time during writing content.
Moving Letters is a collection of cool animated letters and typography effects.
It supports all standardized named character references as per HTML, handles ambiguous ampersands and other edge cases just like a browser would, has an extensive test suite, and handles astral Unicode symbols just fine.
Rangy also comes with optional modules, each of which comes in a separate .js file.
RegExpBuilder integrates regular expressions into the programming language, thereby making them easy to read and maintain.
Regular Expressions are created by using chained methods and variables such as arrays or strings.
Pell is the simplest and smallest WYSIWYG text editor for web, with no dependencies.